1 // SPDX-License-Identifier: GPL-2.0+
6  * COMEDI - Linux Control and Measurement Device Interface
20  * [0] - I/O port base base address
21  * [1] - IRQ (unused)
22  * [2] - Voltage unipolar/bipolar configuration
23  *	0 == unipolar 5V  (0V -- +5V)
24  *	1 == bipolar 5V  (-5V -- +5V)
25  * [3] - Current offset configuration
26  *	0 == disabled  (0mA -- +32mAV)
27  *	1 == enabled  (+4mA -- +20mAV)
28  * [4] - Firmware program configuration
29  *	0 == program 1 (see manual table 5-4)
30  *	1 == program 2 (see manual table 5-4)
31  *	2 == program 3 (see manual table 5-4)
32  *	3 == program 4 (see manual table 5-4)
33  * [5] - Analog output 0 range configuration
36  * [6] - Analog output 1 range configuration (same options)
37  * [7] - Analog output 2 range configuration (same options)
38  * [8] - Analog output 3 range configuration (same options)
39  * [9] - Analog output 4 range configuration (same options)
40  * [10] - Analog output 5 range configuration (same options)
41  * [11] - Analog output 6 range configuration (same options)
42  * [12] - Analog output 7 range configuration (same options)
64 	status = inb(dev->iobase + DT2815_STATUS);  in dt2815_ao_status()
67 	return -EBUSY;  in dt2815_ao_status()
74 	struct dt2815_private *devpriv = dev->private;  in dt2815_ao_insn_read()
76 	int chan = CR_CHAN(insn->chanspec);  in dt2815_ao_insn_read()
78 	for (i = 0; i < insn->n; i++)  in dt2815_ao_insn_read()
79 		data[i] = devpriv->ao_readback[chan];  in dt2815_ao_insn_read()
87 	struct dt2815_private *devpriv = dev->private;  in dt2815_ao_insn()
89 	int chan = CR_CHAN(insn->chanspec);  in dt2815_ao_insn()
93 	for (i = 0; i < insn->n; i++) {  in dt2815_ao_insn()
102 		outb(lo, dev->iobase + DT2815_DATA);  in dt2815_ao_insn()
108 		outb(hi, dev->iobase + DT2815_DATA);  in dt2815_ao_insn()
110 		devpriv->ao_readback[chan] = data[i];  in dt2815_ao_insn()
119  *		0 == unipolar 5V  (0V -- +5V)
120  *		1 == bipolar 5V  (-5V -- +5V)
121  * options[3]   Current offset configuration
122  *		0 == disabled  (0mA -- +32mAV)
123  *		1 == enabled  (+4mA -- +20mAV)
125  *		0 == program 1 (see manual table 5-4)
126  *		1 == program 2 (see manual table 5-4)
127  *		2 == program 3 (see manual table 5-4)
128  *		3 == program 4 (see manual table 5-4)
129  * options[5]   Analog output 0 range configuration
147 	ret = comedi_request_region(dev, it->options[0], 0x2);  in dt2815_attach()
157 		return -ENOMEM;  in dt2815_attach()
159 	s = &dev->subdevices[0];  in dt2815_attach()
161 	s->type = COMEDI_SUBD_AO;  in dt2815_attach()
162 	s->subdev_flags = SDF_WRITABLE;  in dt2815_attach()
163 	s->maxdata = 0xfff;  in dt2815_attach()
164 	s->n_chan = 8;  in dt2815_attach()
165 	s->insn_write = dt2815_ao_insn;  in dt2815_attach()
166 	s->insn_read = dt2815_ao_insn_read;  in dt2815_attach()
167 	s->range_table_list = devpriv->range_type_list;  in dt2815_attach()
169 	current_range_type = (it->options[3])  in dt2815_attach()
171 	voltage_range_type = (it->options[2])  in dt2815_attach()
174 		devpriv->range_type_list[i] = (it->options[5 + i])  in dt2815_attach()
179 	outb(0x00, dev->iobase + DT2815_STATUS);  in dt2815_attach()
185 		status = inb(dev->iobase + DT2815_STATUS);  in dt2815_attach()
189 			program = (it->options[4] & 0x3) << 3 | 0x7;  in dt2815_attach()
190 			outb(program, dev->iobase + DT2815_DATA);  in dt2815_attach()
191 			dev_dbg(dev->class_dev, "program: 0x%x (@t=%d)\n",  in dt2815_attach()
195 			dev_dbg(dev->class_dev,  in dt2815_attach()
199 				outb(0x00, dev->iobase + DT2815_STATUS);  in dt2815_attach()
215 MODULE_DESCRIPTION("Comedi low-level driver");